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Finding the Fourth Proportional to 248.43, 372.73 and 75.10

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Solution

The fourth proportional to 248.43, 372.73 and 75.10 is: 112.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.43 : 372.73 = 75.10 : x
  2. Step 2: Convert to fraction form
    248.43/372.73 = 75.10/x
  3. Step 3: Cross multiply
    248.43x = 372.73 × 75.10
  4. Step 4: Simplify right side
    248.43x = 27,992.02
  5. Step 5: Solve for x
    x = 27,992.02/248.43
  6. Step 6: Final answer
    x = 112.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.